private void NotifyAboutCheckMate(Player initiator, Player opponent, ChessPoint from, ChessPoint to)
{
var field = _virtualField.CloneMatrix();
_turnColor = _turnColor.Invert();
var winner = initiator.PlayerColor;
var winnerGameInfo = new WcfGameInfo(
initiator.PlayerColor,
opponent.PlayerName,
field.ToJaggedArray(),
_turnColor,
winner);
var loserGameInfo = new WcfGameInfo(
initiator.PlayerColor,
opponent.PlayerName,
field.ToJaggedArray(),
_turnColor,
winner);
initiator.Callback.GameHasEnded(winnerGameInfo, from.FromBusiness(), to.FromBusiness());
opponent.Callback.GameHasEnded(loserGameInfo, from.FromBusiness(), to.FromBusiness());
GameEnded?.Invoke(this, EventArgs.Empty);
}
/// <summary>
/// Check for check mate.
/// </summary>
/// <param name="initiatorColor">Initiator color.</param>
/// <param name="field">Game field.</param>
/// <param name="masterFactory">Master factory implementation.</param>
/// <param name="isCheck">Is check on table.</param>
/// <returns>Checkmate flag.</returns>
public static bool IsCheckMate(
PlayerColor initiatorColor,
VirtualField field,
IPieceMasterFactory masterFactory,
out bool isCheck)
{
isCheck = false;
// Check for check now
if (IsCheck(initiatorColor, field, masterFactory))
{
isCheck = true;
var opponentColor = initiatorColor.Invert();
// Otherwise do all possible movements, in the case of no possibility to prevent being attacked = initiator wins
foreach (var opponmentPiecePoint in FindPieces(p => p.GetPlayerColor() == opponentColor, field))
{
PieceMasterBase master;
if (masterFactory.TryGetMaster(field, opponmentPiecePoint, out master))
{
foreach (var movement in master.GetMovements())
{
var fieldCopy = new VirtualField(field.CloneMatrix());
if (fieldCopy[movement].GetPlayerColor() == fieldCopy[opponmentPiecePoint].GetPlayerColor())
{
// Step on free space
var temp = fieldCopy[opponmentPiecePoint];
fieldCopy[opponmentPiecePoint] = fieldCopy[movement];
fieldCopy[movement] = temp;
}
else
{
// Eat opponent piece
fieldCopy[movement] = fieldCopy[opponmentPiecePoint];
fieldCopy[opponmentPiecePoint] = ChessPiece.Empty;
}
if (!IsCheck(initiatorColor, fieldCopy, masterFactory))
{
return(false);
}
}
}
}
// Passed all steps and no possibilities to prevent a check
return(true);
}
return(false);
}